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Compact wall-mounted units KWL EC 170 W / W ET
Installation and Operating Instructions
EN
EN
ries). During extraction of polluted extract air, a filter (accessories) is to be connected. The installation of kitchen hoods
to the system (cause: dirt, fire danger, hygiene) is not permitted. To ensure air circulation within the room, sufficient
overflow openings (door gap, door grilles) are to be planned.
All fire protection regulations must be observed .
2 .6 Unit insulation
If installed in heated rooms and higher humidity condensation can occur at the outside of the unit in the outside and
exhaust air area. In this case a water-vapour-tight insulation is to be attached laminar in this area. Furthermore the out-
side and outgoing air ductwork should be insulated sufficiently.
If installed in non-heated areas (e.g. frost-protected attic) a sufficient insulation outside on the unit is to be installed all
around. Otherwise condensate formation could occur on the housing sides. The condensate removal must be installed
frost-protected, perhaps with a heater.
2 .7
m
Electrical connection
The unit must be fully isolated from the mains power supply before any maintenance or installation work or
opening the terminal compartment! The electrical connections must be carried out in accordance with the
relevant wiring diagram and are only to be carried out by certified electricians . All relevant standards, safety
regulations (e .g . DIN EN VDE 0100) and the technical connection conditions of the electrical supply company
must be observed .
If the internal terminal box is opened (e .g . fuse replacement, battery replacement, etc .), then the KWL unit must
be fully isolated from the mains power supply!
– Allow the unit to cool down or wait for five minutes until the fans have turned off .
– Risk of electric shock, moving parts (fans) and hot surfaces .
According to DIN EN 60335-1 / VDE 0700 pt 1 7.12.1, a main switch and isolator (Accessories RHS 3+1) must be
integrated in the unit supply cable and, in this respect, the minimum requirement of a 3 mm contact opening must be
fulfilled. The main switch and isolator must be protected against being restarted by appropriate means.
If a residual current circuit breaker is installed in the supply line of the KWL unit, the residual current circuit breaker must have
the following technical features:
Type A or B with a rated differential current of 30 mA.
The KWL unit has a leakage current of
≤
3,5 mA (calculated according to DIN EN 50178, image 4).
Please hand the circuit diagrams to the installer!
With regard to the flush-mounted installation of the control element, deep flush sockets must be used . The
following sensors can be used as accessories: KWL-CO
2
, KWL-VOC or KWL-FTF .
If control cables incl . sockets (KWL-SL) are used for the BUS components, an empty conduit (at least size M25)
will be required for the flush-mounted installation .
The BUS components can be connected in series in any order . A star-shaped BUS connection is not possible .
Depending on the number of BUS components and cable length, the corresponding cable cross sections
should be selected, see also SS-1042, SS-1077 and SS-1079 .
ATTENTION
m
WARNING
m
IMPORTANT NOTE
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